[x64] Compare handles instead of code targets in emit_code_target.

src/x64/assembler-x64-inl.h

Index: src/x64/assembler-x64-inl.h
diff --git a/src/x64/assembler-x64-inl.h b/src/x64/assembler-x64-inl.h
index a7256565f1d9b8e3803221de5ff41c6feb9a3b4a..151bbec8d685ccea99936c0686def863acbc73ad 100644
--- a/src/x64/assembler-x64-inl.h
+++ b/src/x64/assembler-x64-inl.h
@@ -65,7 +65,7 @@ void Assembler::emit_code_target(Handle<Code> target,
     RecordRelocInfo(rmode);
   }
   int current = code_targets_.length();
-  if (current > 0 && code_targets_.last().is_identical_to(target)) {
+  if (current > 0 && code_targets_.last().location() == target.location()) {

[Benedikt Meurer, 2016/07/08 07:18:29]

Please use address() instead of location().

[ahaas, 2016/07/08 07:32:43]

Done.

     // Optimization if we keep jumping to the same code target.
     emitl(current - 1);
   } else {